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CVE-2019-12523

CVSS v3.1 9.1 (Critical)
91% Progress
CVSS v2.0 6.4 (Medium)
64% Progress
EPSS 1.06 % (84th)
1.06% Progress
Affected Products 5
Advisories 16
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

An issue was discovered in Squid before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.

Weaknesses
CWE-NVD-noinfo
CVE Status
PUBLISHED
CNA
MITRE
Published Date
2019-11-26 17:15:10
(4 years ago)
Updated Date
2023-11-07 03:03:37
(10 months ago)

Affected Products

Canonical

Debian

Fedoraproject

Opensuse

Squid-cache

Configuration #1

    CPE23 From Up To
  Squid-cache Squid from 3.0 version and 3.5.28 and prior versions cpe:2.3:a:squid-cache:squid >= 3.0 <= 3.5.28
  Squid-cache Squid from 4.0 version and 4.8 and prior versions cpe:2.3:a:squid-cache:squid >= 4.0 <= 4.8

Configuration #2

    CPE23 From Up To
  Canonical Ubuntu Linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts
  Canonical Ubuntu Linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts
  Canonical Ubuntu Linux 19.04 cpe:2.3:o:canonical:ubuntu_linux:19.04
  Canonical Ubuntu Linux 19.10 cpe:2.3:o:canonical:ubuntu_linux:19.10

Configuration #3

    CPE23 From Up To
  Fedoraproject Fedora 30 cpe:2.3:o:fedoraproject:fedora:30
  Fedoraproject Fedora 31 cpe:2.3:o:fedoraproject:fedora:31

Configuration #4

    CPE23 From Up To
  Opensuse Leap 15.0 cpe:2.3:o:opensuse:leap:15.0

Configuration #5

    CPE23 From Up To
  Debian Linux 9.0 cpe:2.3:o:debian:debian_linux:9.0
  Debian Linux 10.0 cpe:2.3:o:debian:debian_linux:10.0

Configuration #6

    CPE23 From Up To
  Canonical Ubuntu Linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm
  Canonical Ubuntu Linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts